hitorilily, serika (blue archive), blue archive, adversarial noise, commentary request, highres, 1girl, animal ear fluff, animal ears, bare arms, bare shoulders, bikini, black bikini, black hair, breasts, cat ears, cleavage, collarbone, gluteal fold, hair between eyes, halo, happy birthday, heart, leaning forward, long hair, looking at viewer, mole, mole on breast, pink halo, red eyes, simple background, small breasts, smile, solo, swimsuit, thigh gap, twintails, white background, wide hips